Sökning: "Vegetable oils"

Visar resultat 1 - 5 av 27 avhandlingar innehållade orden Vegetable oils.

1. 1. Supercritical Hydrogenation of Vegetable Oils

   Författare :Maj-Britt Macher; Chalmers tekniska högskola; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; palladium catalyst; supercritical; hydrogenation; silver ion HPLC; rapeseed oil; fatty acid methyl ester; trans fatty acid; palm oil; deactivation; propane;

   Sammanfattning : Vegetable oils were hydrogenated in a supercritical single-phase mixture with propane and hydrogen. The reaction was carried out in a small (0.5 ml) fixed-bed reactor and the influence of different process parameters was investigated. LÄS MER

3. 2. Applications of Solid-Phase Microextraction to Chemical Characterization of Materials Used in Road Construction

   Författare :Bing Tang; Ulf Isacsson; Xiaohu Lu; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Asphalt release agents; Petroleum oils; Vegetable oils; Bituminous sealants; Bitumen; Emissions; Monocyclic aromatic hydrocarbons; Polycyclic aromatic hydrocarbons; Fourier Transform Infrared Spectroscopy - Attenuated Total Reflectance; Gel Permeation Chromatography; Mass Spectrometry; Gas Chromatography - Mass Spectrometry; Thermogravimetric Analysis; Headspace; Solid-phase microextraction; Calibration.; Building engineering; Byggnadsteknik;

   Sammanfattning : Environmental and health aspects of road materials have been discussed for a long time, mostly regarding bitumen and bitumen fumes. However, just a few studies on other types of road materials have been reported. LÄS MER

4. 3. Green plasticizers for PVC - An investigation of renewable alternatives to phthalates derived from vegetable oils or wood industry products

   Författare :Anna Bondeson; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; PVC; Epoxidized vegetable oils; Crosslinking; Plasticizer; Heat ageing; Lignin.; Tall oil fatty acid;

   Sammanfattning : Polyvinyl chloride (PVC) is a very versatile thermoplastic because of its ability to solve a broad range of different concentrations of plasticizer. Phthalates are still the most commonly used plasticizer in PVC, but due to public opinion and legislation against phthalates there is a demand in the market for both old and new phthalate free plasticizersProperties of epoxidized oils of soybean (ESBO), canola (ECO), sunflower (ESFO) and safflower (ESAO) were investigated to determine their suitability as plasticizers. LÄS MER

5. 4. Exploring fatty acid derivatives from renewable resources as raw materials for coating applications

   Författare :Samer Nameer; Mats Johansson; Mats Martinelle; Dean Webster; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; epoxy; vegetable oils; birch bark; thermoset; bio-based; fatty acid; renewable resources; Fiber- och polymervetenskap; Fibre and Polymer Science;

   Sammanfattning : In the work presented herein, epoxy fatty acid derivatives were explored in the formation of thermosets for coating applications. The epoxy fatty acid derivatives were obtained from renewable resources such as birch tree bark and epoxidized linseed oil. LÄS MER

7. 5. Quality of lipids in fish fed vegetable oils : effects of bioactive compounds on fatty acid metabolism

   Författare :Sofia Trattner; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []
   Nyckelord :LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES;

   Sammanfattning : .... LÄS MER